<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>说你好</title>
</head>
<body>
你好、世界
<hr>
在线人数：${applicationScope.People_number}
<br>
<a href="${pageContext.request.contextPath}/out">点击下线</a>
</body>
</html>
